Another possible theme is self - discovery through love. The characters might learn more about themselves as they fall in love. Also, the theme of sacrifice in love. One character may have to sacrifice something important for the sake of the relationship. It could also deal with the theme of second chances in love, where characters get a new opportunity to be together after some setbacks.
The theme of long - distance love might be present in your novel. Characters having to deal with being apart and still maintaining their love. There could also be a theme of love conquering all, no matter what difficulties or challenges they face. And perhaps the theme of new love, like when two people meet and suddenly their world changes with this new - found love.
Identity could be a major theme as well. The secret daughter would have to grapple with her own identity, and those around her would also need to re - evaluate their understanding of who she is in the context of this new revelation. This could involve issues such as self - worth, belonging, and the search for one's true place in the family and society.
Love could be a theme. Maybe it's a secret love that the character has and is longing for. Another theme could be adventure, like the character has a secret wish to go on an exciting journey. Or it could be about self - discovery, where the character is trying to figure out who they really are through their secret wishes.
One possible theme could be self - discovery. As the characters in the novel explore their secret wishes, they are likely to learn more about themselves. For example, they might find out what truly makes them happy or what their long - term goals are.
Another possible theme could be the exploration of the unknown. The'secret guide' implies that there are things about Paris that are not commonly known. So, the main character might be on a quest to discover these hidden aspects of the city. This exploration could lead to various revelations, not just about Paris but also about life in general. It could also touch on the theme of cultural immersion, as Paris has a rich and unique culture, and the character might be trying to fully immerse themselves in it while following the guide and chasing their wish.
There may be a lot of suspense in the story. For instance, there could be a nosy neighbor or a jealous rival who is always on the verge of uncovering the secret. Also, the setting can play a big role. If it's in a small community, it's harder to keep the secret. And of course, the love story at the core, with all the stolen kisses and whispered sweet nothings.
One possible theme could be transformation. Maybe the story shows how the protagonist's life is transformed by their interaction with the billionaire. Another theme might be secrecy itself, exploring why the billionaire has secrets and how they are kept or revealed.
Adventure might be a theme. They could be on a quest or journey that only they know about. For example, exploring an abandoned building or searching for a lost artifact. Also, secrecy itself could be a theme. They have to keep their team and their activities a secret from the outside world, which adds an element of mystery.
Power dynamics is likely to be a theme. The CEO, Eric Benson, holds a position of power, and the interaction between him and the other character(s) will probably show how power is negotiated in the corporate world. Also, the theme of mystery might be present as the reason for the secret appointment is not known at first.
One possible theme could be social mobility. Just like in the original 'My Fair Lady' concept, the female character might experience a change in her social status through her relationship or personal growth. Another theme could be the discovery of true beauty, not just physical but also inner beauty. The story may show how the male lead comes to see the real worth of the female lead beyond her initial appearance.
One possible theme could be secrecy itself. The fact that it's a secret lover implies that there are things that need to be hidden, like perhaps the relationship goes against social norms or workplace ethics.